What was the biggest effect the columbian exchange had on europe

Interest groups are protected by the first amendment guarantees of petition and what other freedom?

Wha industry did the refrigerated rail car impact the most

Which of the following statements about the fugitive slave act of 1850 is not accurate. a. marshals who refused to arrest a suspected fugitive could be fined $1,000. b. slave owners had to present evidence that an african american in the north was a fugitive slave. c. any person who provided food or shelter to a fugitive slave could be find $1000 and placed in jail for six months. d. it required all federal marshals to arrest any african-american suspected of being a runaway slave.